Cashing Out

Flash back to 4, 5, or however many years ago to the day you started investing in, or mining, whatever promising sounding crypto piqued your interest at the time. Maybe you threw a few hundred or a few thousand at it in hopes of big gains. Today, many folks are holding big rewards for the risks they took when they first began mining or buying.

My question to everyone is what are the best methods and places to cash out if you're ready to sell your holdings? What sites allow the highest daily transfers? What exchanges are US based, and which are not?

Is there a good tutorial on how to cash out? I mined for a few weeks a long while back. Forgot all about it and it looks like I still have almost 2 Ether. This is on https://etherscan.io/address/0x_______ What's the next step? Thanks